元素同位素地球化学专业，主要开展新生代以来气候环境演变的研究，近年主要研究方向包括：

1) 利用海洋、湖泊沉积物地球化学记录研究晚新代以来气候环境演变东来季风气候的形成及演变；

2) 利用造礁珊瑚重建热带海洋全新世高分辨率气候环境演变记录，重点探讨东亚季风气候与热带太平洋气候系统的相互联系；

3) 研究工业化革命以来人类活动影响的叠加对气候环境演变的影响；

4) 研究华南红土化过程中元素同位素地球化学的变化特征，拓展热带气候环境演变的研究领域；

5) 气候环境演变等相关研究中元素-同位素地球化学方法学研究。

1.Deng W.F., Liu Y., Wei G.J.*, Li X.H., Tu X.L., Xie L.X., Zhang H. and Sun W.D.. (2010) High-precision analysis of Sr/Ca and Mg/Ca ratios in corals by laser ablation inductively coupled plasma optical emission spectrometry. Journal of Analytical Atomic Spectrometry, 25, 84-87 (*Corresponding author)
2.Ma J.L., Wei G.J.*, Xu Y.G., Long W.G. (2010) Variations of Sr–Nd–Hf isotopic systematics in basalt during intensive weathering. Chemical Geology, 269:376-385 (*Corresponding author)
3.Wei G.J., McCulloch M.T., Mortimer G., Deng W.F., Xie L.H. (2009) Evidence for ocean acidification in the Great Barrier Reef of Australia. Geochimica et Cosmochimica Acta, 73:2332-2346
4.Deng W.F, Wei G.J.*, Li X.H., Yu K.F., Zhao J.X., Sun W.D., Liu Y. (2009) Paleoprecipitation record from coral Sr/Ca and δ18O during the mid Holocene in the northern South China Sea. The Holocene, 19(6): 811–821　(*Corresponding author)
5.Wei G.J., Zou L., Deng W.F., Li X.H., Liu Y. and Chen J.F. (2009) Mn/Ca ratio in planktonic foraminifer from ODP Site 1144, the northern South China Sea: A possible paleoclimate indicator. Geochemical Journal, 43(4): 235-246
6.Wei, G.J., Deng, W.F., Yu, K.F., Li, X.H., Zhao, J.X. and Sun, W.D., 2007. Sea surface temperature records in the northern South China Sea from mid-Holocene coral Sr/Ca ratios. Paleoceanography, 22, doi:10.1029/2006PA001270.
7.Wei, G.J., Deng, W.F., Liu, Y. and Li, X.H., 2007. High-resolution sea surface temperature records derived from foraminiferal Mg/Ca ratios during the last 260ka in the northern South China Sea. Palaeogeography Palaeoclimatology Palaeoecology, 250: 126-138.
8.Ma, J.L., Wei, G.J.*, Xu, Y.G., Long, W.G. and Sun, W.D., 2007. Mobilization and re-distribution of major and trace elements during extreme weathering of basalt in Hainan Island, South China. Geochimica et Cosmochimica Acta, 71(13):   3223-3237. (*Corresponding author)
9.Wei, G.J., Li, X.H., Liu, Y., Shao, L. and Liang, X.R., 2006. Geochemical record of chemical weathering and monsoon climate change since the early Miocene in the South China Sea. Paleoceanography, 21, PA4214, doi: 10.1029/2006PA001300.
10.Wei, G.J., Huang, C.Y., Wang, C.C., Lee, M.Y. and Wei, K.Y., 2006. High-resolution benthic foraminifer d13C records in the South China Sea during the last 150 ka. Marine Geology, 232(3-4): 227-235.
11.Wei, G.J., Liu, Y., Li, X.H., Shao, L. and Fang, D.Y., 2004. Major and trace element variations of the sediments at ODP Site 1144, South China Sea, during the last 230 ka and their paleoclimate implications. Palaeogeography Palaeoclimatology Palaeoecology, 212(3-4): 331-342.
12.Wei, G.J., Yu, K.F. and Zhao, J.X., 2004. Sea surface temperature variations recorded on coralline Sr/Ca ratios during Mid-Late Holocene in Leizhou Peninsula. Chinese Science Bulletin, 49(17): 1876-1881.
13.Wei, G.J., Liu, Y., Li, X.H., Chen, M.H. and Wei, W.C., 2003. High-resolution elemental records from the South China Sea and their paleoproductivity implications. Paleoceanography, 18(2), 1054, doi: 10.1029/2002PA000826, 2003.
14.Wei, G.J., Liu, Y., Li, X.H., Shao, L. and Liang, X.R., 2003. Climatic impact on Al, K, Sc and Ti in marine sediments: Evidence from ODP Site 1144, South China Sea. Geochemical Journal, 37(5): 593-602.
15.Wei, G.J., Sun, M., Li, X.H. and Nie, B.F., 2000. Mg/Ca, Sr/Ca and U/Ca ratios of a porites coral from Sanya Bay, Hainan Island, South China Sea and their relationships to sea surface temperature. Palaeogeography Palaeoclimatology P

1) 973项目“中国近海碳收支、调控机制与生态效应研究”课题“海洋酸化历史与现状评估”(编号：2009CB412106)，2009-2013 (负责)；
2) 中国科学院知识创新工程项目“末次冰消期以来华南沿海地区环境演变的高分辨率海陆记录重建与驱动机制研究”(编号：KZCX2-YW-138)，2009-2011 (负责)
3) 国家自然科学基金重点项目“全新世南海珊瑚礁白化的频率与恢复周期”，2009-2011 (参加)；
4) 973项目“大洋碳循环与气候演变的热带驱动”课题“热带海洋珊瑚礁台地与碳循环”(编号：2007CB815905)，2007-2011 (参加)；